/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2007 - 2013 Red Hat, Inc.
 * Copyright (C) 2007 - 2008 Novell, Inc.
 */

#include "libnm-core-impl/nm-default-libnm-core.h"

#include "nm-setting-gsm.h"

#include "nm-utils.h"
#include "nm-setting-private.h"
#include "nm-core-enum-types.h"

/**
 * SECTION:nm-setting-gsm
 * @short_description: Describes GSM/3GPP-based mobile broadband properties
 *
 * The #NMSettingGsm object is a #NMSetting subclass that describes
 * properties that allow connections to 3GPP-based mobile broadband
 * networks, including those using GPRS/EDGE and UMTS/HSPA technology.
 */

/*****************************************************************************/

NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_AUTO_CONFIG,
                                  PROP_NUMBER,
                                  PROP_USERNAME,
                                  PROP_PASSWORD,
                                  PROP_PASSWORD_FLAGS,
                                  PROP_APN,
                                  PROP_NETWORK_ID,
                                  PROP_PIN,
                                  PROP_PIN_FLAGS,
                                  PROP_HOME_ONLY,
                                  PROP_DEVICE_ID,
                                  PROP_SIM_ID,
                                  PROP_SIM_OPERATOR_ID,
                                  PROP_MTU, );

typedef struct {
    char *               number; /* For dialing, duh */
    char *               username;
    char *               password;
    char *               device_id;
    char *               sim_id;
    char *               sim_operator_id;
    char *               apn;        /* NULL for dynamic */
    char *               network_id; /* for manual registration or NULL for automatic */
    char *               pin;
    NMSettingSecretFlags password_flags;
    NMSettingSecretFlags pin_flags;
    guint32              mtu;
    bool                 auto_config : 1;
    bool                 home_only : 1;
} NMSettingGsmPrivate;

G_DEFINE_TYPE(NMSettingGsm, nm_setting_gsm, NM_TYPE_SETTING)

#define NM_SETTING_GSM_GET_PRIVATE(o) \
    (G_TYPE_INSTANCE_GET_PRIVATE((o), NM_TYPE_SETTING_GSM, NMSettingGsmPrivate))

/*****************************************************************************/

/**
 * nm_setting_gsm_get_auto_config:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:auto-config property of the setting
 *
 * Since: 1.22
 **/
gboolean
nm_setting_gsm_get_auto_config(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), FALSE);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->auto_config;
}

/**
 * nm_setting_gsm_get_number:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:number property of the setting
 *
 * Deprecated: 1.16: User-provided values for this setting are no longer used.
 **/
const char *
nm_setting_gsm_get_number(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->number;
}

/**
 * nm_setting_gsm_get_username:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:username property of the setting
 **/
const char *
nm_setting_gsm_get_username(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->username;
}

/**
 * nm_setting_gsm_get_password:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:password property of the setting
 **/
const char *
nm_setting_gsm_get_password(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->password;
}

/**
 * nm_setting_gsm_get_password_flags:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingSecretFlags pertaining to the #NMSettingGsm:password
 **/
NMSettingSecretFlags
nm_setting_gsm_get_password_flags(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NM_SETTING_SECRET_FLAG_NONE);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->password_flags;
}

/**
 * nm_setting_gsm_get_apn:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:apn property of the setting
 **/
const char *
nm_setting_gsm_get_apn(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->apn;
}

/**
 * nm_setting_gsm_get_network_id:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:network-id property of the setting
 **/
const char *
nm_setting_gsm_get_network_id(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->network_id;
}

/**
 * nm_setting_gsm_get_pin:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:pin property of the setting
 **/
const char *
nm_setting_gsm_get_pin(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->pin;
}

/**
 * nm_setting_gsm_get_pin_flags:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingSecretFlags pertaining to the #NMSettingGsm:pin
 **/
NMSettingSecretFlags
nm_setting_gsm_get_pin_flags(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NM_SETTING_SECRET_FLAG_NONE);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->pin_flags;
}

/**
 * nm_setting_gsm_get_home_only:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:home-only property of the setting
 **/
gboolean
nm_setting_gsm_get_home_only(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), FALSE);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->home_only;
}

/**
 * nm_setting_gsm_get_device_id:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:device-id property of the setting
 *
 * Since: 1.2
 **/
const char *
nm_setting_gsm_get_device_id(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->device_id;
}

/**
 * nm_setting_gsm_get_sim_id:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:sim-id property of the setting
 *
 * Since: 1.2
 **/
const char *
nm_setting_gsm_get_sim_id(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->sim_id;
}

/**
 * nm_setting_gsm_get_sim_operator_id:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:sim-operator-id property of the setting
 *
 * Since: 1.2
 **/
const char *
nm_setting_gsm_get_sim_operator_id(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->sim_operator_id;
}

/**
 * nm_setting_gsm_get_mtu:
 * @setting: the #NMSettingGsm
 *
 * Returns: the #NMSettingGsm:mtu property of the setting
 *
 * Since: 1.8
 **/
guint32
nm_setting_gsm_get_mtu(NMSettingGsm *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), 0);

    return NM_SETTING_GSM_GET_PRIVATE(setting)->mtu;
}

static gboolean
verify(NMSetting *setting, NMConnection *connection, GError **error)
{
    NMSettingGsmPrivate *priv = NM_SETTING_GSM_GET_PRIVATE(setting);

    if (priv->number && !priv->number[0]) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property is empty"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_NUMBER);
        return FALSE;
    }

    if (priv->apn) {
        gsize apn_len = strlen(priv->apn);
        gsize i;

        if (apn_len > 64) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
                        _("property value '%s' is empty or too long (>64)"),
                        priv->apn);
            g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_APN);
            return FALSE;
        }

        /* APNs roughly follow the same rules as DNS domain names.  Allowed
         * characters are a-z, 0-9, . and -.  GSM 03.03 Section 9.1 states:
         *
         *   The syntax of the APN shall follow the Name Syntax defined in
         *   RFC 2181 [14] and RFC 1035 [15]. The APN consists of one or
         *   more labels. Each label is coded as one octet length field
         *   followed by that number of octets coded as 8 bit ASCII characters.
         *   Following RFC 1035 [15] the labels should consist only of the
         *   alphabetic characters (A-Z and a-z), digits (0-9) and the
         *   dash (-). The case of alphabetic characters is not significant.
         *
         * A dot (.) is commonly used to separate parts of the APN, and
         * apparently the underscore (_) is used as well.  RFC 2181 indicates
         * that no restrictions of any kind are placed on DNS labels, and thus
         * it would appear that none are placed on APNs either, but many modems
         * and networks will fail to accept APNs that include odd characters
         * like space ( ) and such.
         */
        for (i = 0; i < apn_len; i++) {
            if (!g_ascii_isalnum(priv->apn[i]) && (priv->apn[i] != '.') && (priv->apn[i] != '_')
                && (priv->apn[i] != '-')) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("'%s' contains invalid char(s) (use [A-Za-z._-])"),
                            priv->apn);
                g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_APN);
                return FALSE;
            }
        }
    }

    if (priv->username && priv->username[0] == '\0') {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property is empty"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_USERNAME);
        return FALSE;
    }

    if (priv->network_id) {
        gsize nid_len = strlen(priv->network_id);
        gsize i;

        /* Accept both 5 and 6 digit MCC/MNC codes */
        if ((nid_len < 5) || (nid_len > 6)) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
                        _("'%s' length is invalid (should be 5 or 6 digits)"),
                        priv->network_id);
            g_prefix_error(error,
                           "%s.%s: ",
                           NM_SETTING_GSM_SETTING_NAME,
                           NM_SETTING_GSM_NETWORK_ID);
            return FALSE;
        }

        for (i = 0; i < nid_len; i++) {
            if (!g_ascii_isdigit(priv->network_id[i])) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("'%s' is not a number"),
                            priv->network_id);
                g_prefix_error(error,
                               "%s.%s: ",
                               NM_SETTING_GSM_SETTING_NAME,
                               NM_SETTING_GSM_NETWORK_ID);
                return FALSE;
            }
        }
    }

    if (priv->device_id && !priv->device_id[0]) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property is empty"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_DEVICE_ID);
        return FALSE;
    }

    if (priv->sim_id && !priv->sim_id[0]) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property is empty"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_SIM_ID);
        return FALSE;
    }

    if (priv->sim_operator_id) {
        size_t      len = strlen(priv->sim_operator_id);
        const char *p   = priv->sim_operator_id;

        if (len == 0 || (len != 5 && len != 6)) {
            g_set_error_literal(error,
                                NM_CONNECTION_ERROR,
                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
                                _("property is empty or wrong size"));
            g_prefix_error(error,
                           "%s.%s: ",
                           NM_SETTING_GSM_SETTING_NAME,
                           NM_SETTING_GSM_SIM_OPERATOR_ID);
            return FALSE;
        }

        while (p && *p) {
            if (!g_ascii_isdigit(*p++)) {
                g_set_error_literal(error,
                                    NM_CONNECTION_ERROR,
                                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
                                    _("property must contain only digits"));
                g_prefix_error(error,
                               "%s.%s: ",
                               NM_SETTING_GSM_SETTING_NAME,
                               NM_SETTING_GSM_SIM_OPERATOR_ID);
                return FALSE;
            }
        }
    }

    if (priv->auto_config && (priv->apn || priv->username || priv->password)) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("can't be enabled when manual configuration is present"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_GSM_SETTING_NAME, NM_SETTING_GSM_AUTO_CONFIG);
        return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
    }

    return TRUE;
}

static gboolean
verify_secrets(NMSetting *setting, NMConnection *connection, GError **error)
{
    return _nm_setting_verify_secret_string(NM_SETTING_GSM_GET_PRIVATE(setting)->password,
                                            NM_SETTING_GSM_SETTING_NAME,
                                            NM_SETTING_GSM_PASSWORD,
                                            error);
}

static GPtrArray *
need_secrets(NMSetting *setting)
{
    NMSettingGsmPrivate *priv    = NM_SETTING_GSM_GET_PRIVATE(setting);
    GPtrArray *          secrets = NULL;

    if (priv->password && *priv->password)
        return NULL;

    if (priv->username) {
        if (!(priv->password_flags & NM_SETTING_SECRET_FLAG_NOT_REQUIRED)) {
            secrets = g_ptr_array_sized_new(1);
            g_ptr_array_add(secrets, NM_SETTING_GSM_PASSWORD);
        }
    }

    return secrets;
}

/*****************************************************************************/

static void
get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NMSettingGsm *setting = NM_SETTING_GSM(object);

    switch (prop_id) {
    case PROP_AUTO_CONFIG:
        g_value_set_boolean(value, nm_setting_gsm_get_auto_config(setting));
        break;
    case PROP_NUMBER:
        g_value_set_string(value, nm_setting_gsm_get_number(setting));
        break;
    case PROP_USERNAME:
        g_value_set_string(value, nm_setting_gsm_get_username(setting));
        break;
    case PROP_PASSWORD:
        g_value_set_string(value, nm_setting_gsm_get_password(setting));
        break;
    case PROP_PASSWORD_FLAGS:
        g_value_set_flags(value, nm_setting_gsm_get_password_flags(setting));
        break;
    case PROP_APN:
        g_value_set_string(value, nm_setting_gsm_get_apn(setting));
        break;
    case PROP_NETWORK_ID:
        g_value_set_string(value, nm_setting_gsm_get_network_id(setting));
        break;
    case PROP_PIN:
        g_value_set_string(value, nm_setting_gsm_get_pin(setting));
        break;
    case PROP_PIN_FLAGS:
        g_value_set_flags(value, nm_setting_gsm_get_pin_flags(setting));
        break;
    case PROP_HOME_ONLY:
        g_value_set_boolean(value, nm_setting_gsm_get_home_only(setting));
        break;
    case PROP_DEVICE_ID:
        g_value_set_string(value, nm_setting_gsm_get_device_id(setting));
        break;
    case PROP_SIM_ID:
        g_value_set_string(value, nm_setting_gsm_get_sim_id(setting));
        break;
    case PROP_SIM_OPERATOR_ID:
        g_value_set_string(value, nm_setting_gsm_get_sim_operator_id(setting));
        break;
    case PROP_MTU:
        g_value_set_uint(value, nm_setting_gsm_get_mtu(setting));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
    NMSettingGsmPrivate *priv = NM_SETTING_GSM_GET_PRIVATE(object);
    char *               tmp;

    switch (prop_id) {
    case PROP_AUTO_CONFIG:
        priv->auto_config = g_value_get_boolean(value);
        break;
    case PROP_NUMBER:
        g_free(priv->number);
        priv->number = g_value_dup_string(value);
        break;
    case PROP_USERNAME:
        g_free(priv->username);
        priv->username = g_value_dup_string(value);
        break;
    case PROP_PASSWORD:
        g_free(priv->password);
        priv->password = g_value_dup_string(value);
        break;
    case PROP_PASSWORD_FLAGS:
        priv->password_flags = g_value_get_flags(value);
        break;
    case PROP_APN:
        g_free(priv->apn);
        priv->apn = NULL;
        tmp       = g_value_dup_string(value);
        if (tmp)
            priv->apn = g_strstrip(tmp);
        break;
    case PROP_NETWORK_ID:
        g_free(priv->network_id);
        priv->network_id = NULL;
        tmp              = g_value_dup_string(value);
        if (tmp)
            priv->network_id = g_strstrip(tmp);
        break;
    case PROP_PIN:
        g_free(priv->pin);
        priv->pin = g_value_dup_string(value);
        break;
    case PROP_PIN_FLAGS:
        priv->pin_flags = g_value_get_flags(value);
        break;
    case PROP_HOME_ONLY:
        priv->home_only = g_value_get_boolean(value);
        break;
    case PROP_DEVICE_ID:
        g_free(priv->device_id);
        priv->device_id = g_value_dup_string(value);
        break;
    case PROP_SIM_ID:
        g_free(priv->sim_id);
        priv->sim_id = g_value_dup_string(value);
        break;
    case PROP_SIM_OPERATOR_ID:
        g_free(priv->sim_operator_id);
        priv->sim_operator_id = g_value_dup_string(value);
        break;
    case PROP_MTU:
        priv->mtu = g_value_get_uint(value);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

/*****************************************************************************/

static void
nm_setting_gsm_init(NMSettingGsm *setting)
{}

/**
 * nm_setting_gsm_new:
 *
 * Creates a new #NMSettingGsm object with default values.
 *
 * Returns: the new empty #NMSettingGsm object
 **/
NMSetting *
nm_setting_gsm_new(void)
{
    return g_object_new(NM_TYPE_SETTING_GSM, NULL);
}

static void
finalize(GObject *object)
{
    NMSettingGsmPrivate *priv = NM_SETTING_GSM_GET_PRIVATE(object);

    g_free(priv->number);
    g_free(priv->username);
    g_free(priv->password);
    g_free(priv->apn);
    g_free(priv->network_id);
    g_free(priv->pin);
    g_free(priv->device_id);
    g_free(priv->sim_id);
    g_free(priv->sim_operator_id);

    G_OBJECT_CLASS(nm_setting_gsm_parent_class)->finalize(object);
}

static void
nm_setting_gsm_class_init(NMSettingGsmClass *klass)
{
    GObjectClass *  object_class        = G_OBJECT_CLASS(klass);
    NMSettingClass *setting_class       = NM_SETTING_CLASS(klass);
    GArray *        properties_override = _nm_sett_info_property_override_create_array();

    g_type_class_add_private(klass, sizeof(NMSettingGsmPrivate));

    object_class->get_property = get_property;
    object_class->set_property = set_property;
    object_class->finalize     = finalize;

    setting_class->verify         = verify;
    setting_class->verify_secrets = verify_secrets;
    setting_class->need_secrets   = need_secrets;

    /**
     * NMSettingGsm:auto-config:
     *
     * When %TRUE, the settings such as APN, username, or password will
     * default to values that match the network the modem will register
     * to in the Mobile Broadband Provider database.
     *
     * Since: 1.22
     **/
    obj_properties[PROP_AUTO_CONFIG] =
        g_param_spec_boolean(NM_SETTING_GSM_AUTO_CONFIG,
                             "",
                             "",
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:number:
     *
     * Legacy setting that used to help establishing PPP data sessions for
     * GSM-based modems.
     *
     * Deprecated: 1.16: User-provided values for this setting are no longer used.
     **/
    obj_properties[PROP_NUMBER] = g_param_spec_string(NM_SETTING_GSM_NUMBER,
                                                      "",
                                                      "",
                                                      NULL,
                                                      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:username:
     *
     * The username used to authenticate with the network, if required.  Many
     * providers do not require a username, or accept any username.  But if a
     * username is required, it is specified here.
     **/
    obj_properties[PROP_USERNAME] = g_param_spec_string(NM_SETTING_GSM_USERNAME,
                                                        "",
                                                        "",
                                                        NULL,
                                                        G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:password:
     *
     * The password used to authenticate with the network, if required.  Many
     * providers do not require a password, or accept any password.  But if a
     * password is required, it is specified here.
     **/
    obj_properties[PROP_PASSWORD] =
        g_param_spec_string(NM_SETTING_GSM_PASSWORD,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | NM_SETTING_PARAM_SECRET | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:password-flags:
     *
     * Flags indicating how to handle the #NMSettingGsm:password property.
     **/
    obj_properties[PROP_PASSWORD_FLAGS] =
        g_param_spec_flags(NM_SETTING_GSM_PASSWORD_FLAGS,
                           "",
                           "",
                           NM_TYPE_SETTING_SECRET_FLAGS,
                           NM_SETTING_SECRET_FLAG_NONE,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:apn:
     *
     * The GPRS Access Point Name specifying the APN used when establishing a
     * data session with the GSM-based network.  The APN often determines how
     * the user will be billed for their network usage and whether the user has
     * access to the Internet or just a provider-specific walled-garden, so it
     * is important to use the correct APN for the user's mobile broadband plan.
     * The APN may only be composed of the characters a-z, 0-9, ., and - per GSM
     * 03.60 Section 14.9.
     **/
    obj_properties[PROP_APN] = g_param_spec_string(NM_SETTING_GSM_APN,
                                                   "",
                                                   "",
                                                   NULL,
                                                   G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:network-id:
     *
     * The Network ID (GSM LAI format, ie MCC-MNC) to force specific network
     * registration.  If the Network ID is specified, NetworkManager will
     * attempt to force the device to register only on the specified network.
     * This can be used to ensure that the device does not roam when direct
     * roaming control of the device is not otherwise possible.
     **/
    obj_properties[PROP_NETWORK_ID] =
        g_param_spec_string(NM_SETTING_GSM_NETWORK_ID,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:pin:
     *
     * If the SIM is locked with a PIN it must be unlocked before any other
     * operations are requested.  Specify the PIN here to allow operation of the
     * device.
     **/
    obj_properties[PROP_PIN] =
        g_param_spec_string(NM_SETTING_GSM_PIN,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | NM_SETTING_PARAM_SECRET | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:pin-flags:
     *
     * Flags indicating how to handle the #NMSettingGsm:pin property.
     **/
    obj_properties[PROP_PIN_FLAGS] = g_param_spec_flags(NM_SETTING_GSM_PIN_FLAGS,
                                                        "",
                                                        "",
                                                        NM_TYPE_SETTING_SECRET_FLAGS,
                                                        NM_SETTING_SECRET_FLAG_NONE,
                                                        G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:home-only:
     *
     * When %TRUE, only connections to the home network will be allowed.
     * Connections to roaming networks will not be made.
     **/
    obj_properties[PROP_HOME_ONLY] =
        g_param_spec_boolean(NM_SETTING_GSM_HOME_ONLY,
                             "",
                             "",
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:device-id:
     *
     * The device unique identifier (as given by the WWAN management service)
     * which this connection applies to.  If given, the connection will only
     * apply to the specified device.
     *
     * Since: 1.2
     **/
    obj_properties[PROP_DEVICE_ID] =
        g_param_spec_string(NM_SETTING_GSM_DEVICE_ID,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:sim-id:
     *
     * The SIM card unique identifier (as given by the WWAN management service)
     * which this connection applies to.  If given, the connection will apply
     * to any device also allowed by #NMSettingGsm:device-id which contains a
     * SIM card matching the given identifier.
     *
     * Since: 1.2
     **/
    obj_properties[PROP_SIM_ID] = g_param_spec_string(NM_SETTING_GSM_SIM_ID,
                                                      "",
                                                      "",
                                                      NULL,
                                                      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:sim-operator-id:
     *
     * A MCC/MNC string like "310260" or "21601" identifying the specific
     * mobile network operator which this connection applies to.  If given,
     * the connection will apply to any device also allowed by
     * #NMSettingGsm:device-id and #NMSettingGsm:sim-id which contains a SIM
     * card provisioned by the given operator.
     *
     * Since: 1.2
     **/
    obj_properties[PROP_SIM_OPERATOR_ID] =
        g_param_spec_string(NM_SETTING_GSM_SIM_OPERATOR_ID,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    /**
     * NMSettingGsm:mtu:
     *
     * If non-zero, only transmit packets of the specified size or smaller,
     * breaking larger packets up into multiple frames.
     *
     * Since: 1.8
     **/
    obj_properties[PROP_MTU] = g_param_spec_uint(NM_SETTING_GSM_MTU,
                                                 "",
                                                 "",
                                                 0,
                                                 G_MAXUINT32,
                                                 0,
                                                 G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE
                                                     | G_PARAM_STATIC_STRINGS);

    /* Ignore incoming deprecated properties */
    _nm_properties_override_dbus(properties_override,
                                 "allowed-bands",
                                 &nm_sett_info_propert_type_deprecated_ignore_u);
    _nm_properties_override_dbus(properties_override,
                                 "network-type",
                                 &nm_sett_info_propert_type_deprecated_ignore_i);

    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);

    _nm_setting_class_commit_full(setting_class,
                                  NM_META_SETTING_TYPE_GSM,
                                  NULL,
                                  properties_override);
}
